Background
Methods
Search strategy for eligible studies
Inclusion and exclusion criteria
Data extraction
Quality assessment
Statistical methods
Results
Study characteristics
First author | Year | Ethnicity | Control source | Sample size | Case | Control | |||
---|---|---|---|---|---|---|---|---|---|
Case | Control | Present | Null | Present | Null | ||||
Strange et al. | 1991 | Caucasian | Hospital-based | 19 | 49 | 5 | 14 | 29 | 20 |
Harada et al. | 1992 | Asian | Population-based | 19 | 84 | 14 | 5 | 44 | 40 |
Kato et al. | 1996 | Asian | Hospital-based | 64 | 120 | 34 | 30 | 59 | 61 |
Katoh et al. | 1996 | Asian | Population-based | 139 | 126 | 60 | 79 | 71 | 55 |
Deakin et al. | 1996 | Caucasian | Hospital-based | 136 | 577 | 64 | 72 | 261 | 316 |
Enders et al. | 1998 | Caucasian | Hospital-based | 51 | 35 | 23 | 28 | 22 | 13 |
Martins et al. | 1998 | Caucasian | Hospital-based | 148 | 84 | 77 | 71 | 40 | 44 |
Oda et al. | 1999 | Asian | Hospital-based | 147 | 112 | 56 | 91 | 57 | 55 |
Cai et al. | 1999 | Asian | Population-based | 95 | 94 | 35 | 60 | 51 | 43 |
Setiawan et al. | 2000 | Asian | Population-based | 87 | 419 | 45 | 42 | 207 | 212 |
Lan et al. | 2001 | Caucasian | Population-based | 347 | 426 | 180 | 167 | 204 | 222 |
Saadat et al. | 2001 | Caucasian | Population-based | 42 | 131 | 16 | 26 | 78 | 53 |
Gao et al. | 2002 | Asian | Population-based | 153 | 223 | 63 | 90 | 90 | 133 |
Wu et al. | 2002 | Asian | Hospital-based | 356 | 278 | 183 | 173 | 142 | 136 |
Sgambato et al. | 2002 | Caucasian | Hospital-based | 8 | 100 | 3 | 5 | 47 | 53 |
Choi et al. | 2003 | Asian | Population-based | 80 | 177 | 34 | 46 | 82 | 95 |
Roth et al. | 2004 | Asian | Population-based | 90 | 454 | 66 | 24 | 309 | 145 |
Suzuki et al. | 2004 | Asian | Hospital-based | 145 | 177 | 58 | 87 | 93 | 84 |
Colombo et al. | 2004 | Mixed | Population-based | 100 | 150 | 53 | 47 | 88 | 62 |
Lai et al. | 2005 | Asian | Hospital-based | 123 | 121 | 50 | 73 | 66 | 55 |
Li et al. | 2005 | Asian | Hospital-based | 100 | 62 | 33 | 67 | 36 | 26 |
Mu et al. | 2005 | Asian | Population-based | 196 | 393 | 69 | 127 | 158 | 235 |
Nan et al. | 2005 | Asian | Hospital-based | 400 | 614 | 149 | 251 | 254 | 360 |
Shen et al. | 2005 | Asian | Hospital-based | 142 | 675 | 41 | 71 | 314 | 361 |
Palli et al. | 2005 | Caucasian | Population-based | 175 | 546 | 85 | 90 | 271 | 275 |
Tamer et al. | 2005 | Caucasian | Hospital-based | 70 | 204 | 30 | 40 | 116 | 88 |
Nan et al. | 2005 | Asian | Hospital-based | 107 | 220 | 34 | 73 | 90 | 130 |
Hong et al. | 2006 | Asian | Hospital-based | 108 | 238 | 48 | 60 | 104 | 134 |
Agudo et al. | 2006 | Caucasian | Population-based | 242 | 927 | 120 | 122 | 434 | 498 |
Martinez et al. | 2006 | Caucasian | Population-based | 87 | 329 | 54 | 33 | 180 | 149 |
Boccia et al. | 2007 | Caucasian | Hospital-based | 105 | 256 | 48 | 59 | 119 | 135 |
Ruzzo et al. | 2007 | Caucasian | Population-based | 79 | 112 | 44 | 35 | 51 | 61 |
Wideroff et al. | 2007 | Caucasian | Population-based | 116 | 209 | 55 | 61 | 87 | 121 |
Tripathi et al. | 2008 | Caucasian | Population-based | 76 | 100 | 45 | 31 | 61 | 39 |
Al-Moundhri et al. | 2009 | Caucasian | Population-based | 107 | 107 | 65 | 42 | 75 | 32 |
Masoudi et al. | 2009 | Caucasian | Hospital-based | 67 | 134 | 30 | 37 | 74 | 60 |
Malik et al. | 2009 | Caucasian | Hospital-based | 108 | 195 | 44 | 64 | 116 | 79 |
Moy et al. | 2009 | Caucasian | Population-based | 170 | 735 | 72 | 98 | 320 | 415 |
Zendehdel et al. | 2009 | Caucasian | Population-based | 181 | 624 | 54 | 70 | 230 | 239 |
Palli et al. | 2010 | Caucasian | Population-based | 296 | 546 | 206 | 90 | 271 | 275 |
Yadav et al. | 2010 | Asian | Hospital-based | 133 | 270 | 84 | 49 | 150 | 120 |
Luo et al. | 2010 | Asian | Hospital-based | 123 | 129 | 30 | 93 | 58 | 71 |
Nguyen et al. | 2010 | Asian | Hospital-based | 59 | 109 | 16 | 43 | 34 | 75 |
Darazy et al. | 2011 | Caucasian | Hospital-based | 13 | 70 | 7 | 6 | 58 | 12 |
García-González et al. | 2012 | Caucasian | Hospital-based | 557 | 557 | 274 | 283 | 290 | 267 |
Malakar et al. | 2012 | Asian | Population-based | 102 | 204 | 45 | 57 | 107 | 97 |
Jing et al. | 2012 | Asian | Hospital-based | 410 | 410 | 170 | 240 | 203 | 207 |